16x25x4 - Lenox Deep Pleat Air Filter by Aerostar

The 16x25x4 Aerostar is designed as a replacement for Lennox deep-pleat air filter cabinets, sized at an actual 15 1/2" x 24 1/2" x 4 1/4". Lennox whole-house media filter housings run on a 4-inch slot, and the Lennox-branded refill through a dealer is substantially more expensive than this Aerostar equivalent, with the same pleated media construction and the same dimensional fit. MERV 8 covers baseline residential filtration: dust, lint, pollen. MERV 11 handles pet households and mild allergy c